18529840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:219

約数の個数: 120

約数和(自身を含む): 52161840

約数和(自身を除く): 33632000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 49, 56, 58, 70, 80, 98, 112, 116, 140, 145, 163, 196, 203, 232, 245, 280, 290, 326, 392, 406, 464, 490, 560, 580, 652, 784, 812, 815, 980, 1015, 1141, 1160, 1304, 1421, 1624, 1630, 1960, 2030, 2282, 2320, 2608, 2842, 3248, 3260, 3920, 4060, 4564, 4727, 5684, 5705, 6520, 7105, 7987, 8120, 9128, 9454, 11368, 11410, 13040, 14210, 15974, 16240, 18256, 18908, 22736, 22820, 23635, 28420, 31948, 33089, 37816, 39935, 45640, 47270, 56840, 63896, 66178, 75632, 79870, 91280, 94540, 113680, 127792, 132356, 159740, 165445, 189080, 231623, 264712, 319480, 330890, 378160, 463246, 529424, 638960, 661780, 926492, 1158115, 1323560, 1852984, 2316230, 2647120, 3705968, 4632460, 9264920, 18529840]

約数ペア:

[(1, 18529840), (2, 9264920), (4, 4632460), (5, 3705968), (7, 2647120), (8, 2316230), (10, 1852984), (14, 1323560), (16, 1158115), (20, 926492), (28, 661780), (29, 638960), (35, 529424), (40, 463246), (49, 378160), (56, 330890), (58, 319480), (70, 264712), (80, 231623), (98, 189080), (112, 165445), (116, 159740), (140, 132356), (145, 127792), (163, 113680), (196, 94540), (203, 91280), (232, 79870), (245, 75632), (280, 66178), (290, 63896), (326, 56840), (392, 47270), (406, 45640), (464, 39935), (490, 37816), (560, 33089), (580, 31948), (652, 28420), (784, 23635), (812, 22820), (815, 22736), (980, 18908), (1015, 18256), (1141, 16240), (1160, 15974), (1304, 14210), (1421, 13040), (1624, 11410), (1630, 11368), (1960, 9454), (2030, 9128), (2282, 8120), (2320, 7987), (2608, 7105), (2842, 6520), (3248, 5705), (3260, 5684), (3920, 4727), (4060, 4564)]